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Deal.ai › 8 Car Subwoofers
ZR8.4D
DS18 ZR8.4D 8" Car Subwoofer with 900 Watts Dvc 4-Ohm
ZR8.4D

DS18 ZR8.4D 8" Car Subwoofer with 900 Watts Dvc 4-Ohm

5(1 rating)

Best price now

$119.95at WalmartChecked Nov 8

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Price facts

  • Last seen at $119.95 at Walmart on Nov 8.

Our take on the DS18 ZR8.4D 8" Car Subwoofer with 900 Watts Dvc 4-Ohm

The DS18 ZR8.4D is an 8-inch car subwoofer with a dual 4-ohm voice coil, rated at 450W RMS and 900W peak. It uses a pressed paper cone, a large foam surround and a 2-inch aluminum voice coil on a stamped steel basket. It works in sealed or ported boxes, so it fits tight spaces like truck cabs and small hatchbacks. It is an entry-level sub: it plays low and clean for the money, but its 82 dB sensitivity means it needs a fair amount of amplifier power to get loud.

Best forSmall cars and truck cabs with limited spaceFirst-time subwoofer buildsSealed or ported box setupsShoppers wanting dual 4-ohm wiring flexibility
Pros
  • Dual 4-ohm coils allow 2-ohm or 8-ohm wiring
  • Handles 450W RMS, 900W peak
  • Works in sealed or ported enclosures
  • Large foam surround for cone control at high excursion
  • Plays down to 33 Hz for an 8-inch driver
Cons
  • Low 82 dB sensitivity needs a strong amplifier
  • 8-inch cone limits output versus larger subs
  • Paper cone and foam surround need care in damp or hot cabins
  • Entry-level build, not a competition sub

DS18 ZR8.4D 8" Car Subwoofer with 900 Watts Dvc 4-Ohm prices at every store

  • WalmartNew

    In stockSold by threepieceusReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $119.95Free shippingChecked Nov 8
    Visit Walmart

About the DS18 ZR8.4D 8" Car Subwoofer with 900 Watts Dvc 4-Ohm

The DS18 ZR8.4D is an 8-inch car subwoofer from the entry-level ZR line. It has dual 4-ohm voice coils and is rated for 450 W RMS and 900 W max power. It works in both sealed and ported boxes.

A large foam surround and a paper cone work together for smooth, crisp bass. The foam surround allows good excursion and cone control near maximum power. The 2-inch aluminum voice coil is built for high power handling. The stamped steel basket carries DS18 logos on the frame, magnet boot, motor and dust cap.

Size
8" nominal diameter
Color
Black (matte black finish)
Impedance
4+4 ohms nominal, dual voice coil
RMS power
450 W
Max power
900 W
Sensitivity
82 dB (1 W/1 m)
Frequency response
33 Hz - 200 Hz
Crossover
Recommended low-pass at 120 Hz
Voice coil
2" (50.8 mm), aluminum former, copper winding
Cone
Paper
Dust cap
PPI
Surround
Foam
Basket
Steel
Magnet
Ferrite, 55 oz
Enclosure
Sealed or ported
Displacement
0.03 ft³
Equivalent volume
5.33 L
Excursion
18 mm (one way)
Free air resonance
45 Hz
Q factors
Mechanical 4.7, Electrical 0.745, Total 0.643
Moving mass
97 g
Compliance
97.58 µm/N
BL factor
9.48
Cone area
196 cm²
DC resistance
3.4 + 3.4 ohms
Efficiency bandwidth product
60.4

Specifications

color
BlackSource
size
8"Source

Questions and answers

What amplifier power does the ZR8.4D need?
It is rated 450W RMS and 900W peak. Because sensitivity is only 82 dB, plan on an amplifier that delivers close to its RMS rating at 2 ohms to get real output.
How do I wire the dual 4-ohm coils?
Wire the two coils in parallel for a 2-ohm load, or in series for 8 ohms. Match that to your amplifier's stable impedance.
Will it work in a sealed box?
Yes. DS18 rates it for both sealed and ported enclosures, so you can pick the box that fits your vehicle and the sound you want.
What crossover setting should I use?
DS18 recommends a low-pass crossover around 120 Hz. Its response runs from 33 Hz to 200 Hz.
Is the ZR8.4D a good first subwoofer?
It is a sensible entry point: simple dual-coil wiring, sealed or ported flexibility and modest power handling. Expect solid bass in a small cabin, not window-shaking output.
Where is the DS18 ZR8.4D 8" Car Subwoofer with 900 Watts Dvc 4-Ohm cheapest?
At Walmart, for $119.95, as of our latest check.
What do buyers say about the DS18 ZR8.4D 8" Car Subwoofer with 900 Watts Dvc 4-Ohm?
Rated 5 out of 5 from 1 ratings.

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